Perceptual Evaluation of Spatial Room Impulse Response Extrapolation by Direct and Residual Subspace Decomposition
Paper in proceeding, 2022

Six-degrees-of-freedom rendering of an acoustic environment can be achieved by interpolating a set of measured spatial room impulse responses (SRIRs). However, the involved measurement effort and computational expense are high. This work compares novel ways of extrapolating a single measured SRIR to a target position. The novel extrapolation techniques are based on a recently proposed subspace method that decomposes SRIRs into a direct part, comprising direct sound and salient reflections, and a residual. We evaluate extrapolations between different positions in a shoebox-shaped room in a multi-stimulus comparison test. Extrapolation using a residual SRIR and salient reflections that match the reflections at the target position is rated as perceptually most similar to the measured reference.

Virtual Reality

Six-Degrees-of-Freedom Rendering

Spatial Room Impulse Response

Perceptual Evaluation

Author

Thomas Deppisch

Chalmers, Architecture and Civil Engineering, Applied Acoustics

Sebastià V. Amengual Garí

Meta Reality Labs Research

Paul Calamia

Meta Reality Labs Research

Jens Ahrens

Chalmers, Architecture and Civil Engineering, Applied Acoustics

Proceedings of the AES International Conference

Vol. 2022-August 122-131
9781713859727 (ISBN)

AES International Conference on Audio for Virtual and Augmented Reality, AVAR 2022
Redmond, USA,

Areas of Advance

Information and Communication Technology

Subject Categories

Fluid Mechanics and Acoustics

Signal Processing

More information

Latest update

4/21/2023